BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
TYS→PHL

Knoxville, TN (TYS) to Philadelphia, PA (PHL) flight delay odds

80.4% of 332 official scheduled TYS-to-PHL flights arrived on time; 12.3% arrived at least 30 minutes late and 3.6% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
80.4%arrived on time
12.3%30+ min late
3.6%cancelled
332scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.3%all scheduled flights
120+ minutes late5.4%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+7.0 mincompleted flights

Which departure time was most reliable for TYS to PHL?

Only Early morning met the TYS-to-PHL departure window threshold: 82.2% of 303 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Early morning30382.2%10.2%4.0%

Which weekday was most reliable for TYS to PHL?

Among qualifying TYS-to-PHL weekday results, Friday had the highest on-time rate: 87.0% of 46 flights. Saturday was lowest at 71.1% across 45 flights.

DayFlightsOn time30+ minCancelled
Monday4682.6%8.7%2.2%
Tuesday4783.0%8.5%8.5%
Wednesday4678.3%19.6%0.0%
Thursday5186.3%11.8%0.0%
Friday4687.0%6.5%4.3%
Saturday4571.1%13.3%4.4%
Sunday5174.5%17.6%5.9%

Which airline was most reliable for TYS to PHL?

Only PSA Airlines met the TYS-to-PHL airline threshold: 80.9% of 320 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
PSA Airlines32080.9%11.9%3.8%
Allegiant Air1266.7%25.0%0.0%

Which month was most reliable for TYS to PHL?

Among qualifying TYS-to-PHL month results, September 2025 had the highest on-time rate: 96.7% of 30 flights. July 2025 was lowest at 73.3% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253073.3%13.3%10.0%
August 20253177.4%6.5%6.5%
September 20253096.7%0.0%0.0%
October 20253180.6%12.9%0.0%
November 20253976.9%20.5%0.0%
December 20253381.8%12.1%3.0%
January 20263177.4%6.5%12.9%
April 20262373.9%26.1%0.0%
May 20263582.9%17.1%0.0%
June 20263878.9%13.2%2.6%

What drove TYS to PHL delay minutes?

Airline was the largest recorded TYS-to-PHL delay category, accounting for 64.3% of 6,365 BTS-attributed delay minutes during July 2025–June 2026.

Airline64.3%
Late aircraft23.3%
National airspace4.1%
Weather7.8%
Security0.4%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.